US Air Force awards Houston geothermal co. $1.9M grant project

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Houston startup Sage Geosystems has announced a new $1.9 million deal with the Air Force. Photo via sagegeosystems.com

The Department of the Air Force awarded Houston geothermal company Sage Geosystems Inc. a grant of $1.9 million in a first-of-its kind contract to determine whether a power plant using Geopressured Geothermal Systems is able to generate clean energy “needed for a base to achieve energy resilience,” according to a news release. The Sage facility will be the first GGS facility in the world to generate electricity, and the system will be constructed at an off-site test well in Starr County, Texas.

”We are excited to partner with the U.S. Air Force on this geothermal demonstration project,” CEO of Sage Geosystems Cindy Taff says in a news release. “Next generation geothermal technologies, like Sage Geosystems’ GGS, will be critical in providing energy resiliency at U.S. military installations.”

In addition to the grant, the company will match the grant with an additional $1.9 million for the demonstration project. The collaboration with Sage is one of three geothermal pilot projects the DAF has initiated in regards to next-generation geothermal technologies in 2024.

“We feel this is the launch pad of helping not only the DoD but many other applications throughout global markets,” 147th Civil Engineer Squadron Commander Lt Col Christian Campbell says in the release.

According to the DAF, the possibility of a full-scale project at Ellington Field Joint Air Reserve Base in Houston could usher in a new era of clean power producing plants to help meet the requirements for bases.

“This initial contract is a step forward in the Air Force’s push for energy resilience,” Kirk Phillips, director of the Air Force Office of Energy Assurance, adds in the release. “This project will improve Ellington Field’s ability to maintain operations during electrical grid outages and be completely self-sufficient for their energy needs.”

The GGS process works by repurposing fracking technology to extract thermal energy from below the Earth’s surface.GGS also demonstrates the opportunity for the civilian sector by surpassing the intermittency challenges for solar and wind energy generation. GSS can also work towards minimizing land use, which enables the technology to be used in urban areas without relying on transmission line build outs that can be expensive.

“This project, and the future Department of the Air Force projects that it paves the way for, will help to assure that our national security needs are met by our installations during critical emergencies,” Phillips continues.

The six finalists for the sustainability category for the 2023 Houston Innovation Awards weigh in on their challenges overcome. Photos courtesy

4 biggest challenges of Houston-based sustainability startups

Houston innovation awards

Six Houston-area sustainability startups have been named finalists in the 2023 Houston Innovation Awards, but they didn't achieve this recognition — as well as see success for their businesses — without any obstacles.

The finalists were asked what their biggest challenges have been. From funding to market adoption, the sustainability companies have had to overcome major obstacles to continue to develop their businesses.

The awards program — hosted by EnergyCapital's sister site, InnovationMap, and Houston Exponential — will name its winners on November 8 at the Houston Innovation Awards. The program was established to honor the best and brightest companies and individuals from the city's innovation community. Eighteen energy startups were named as finalists across all categories, but the following responses come from the finalists in the sustainability category specifically.

Click here to secure your tickets to see who wins.

1. Securing a commercial pilot

"As an early-stage clean energy developer, we struggled to convince key suppliers to work on our commercial pilot project. Suppliers were skeptical of our unproven technology and, given limited inventory from COVID, preferred to prioritize larger clients. We overcame this challenge by bringing on our top suppliers as strategic investors. With a long-term equity stake in Fervo, leading oilfield services companies were willing to provide Fervo with needed drilling rigs, frack crews, pumps, and other equipment." — Tim Latimer, founder and CEO of Fervo Energy

2. Finding funding

"Securing funding in Houston as a solo cleantech startup founder and an immigrant with no network. Overcome that by adopting a milestone-based fundraising approach and establishing credibility through accelerator/incubator programs." — Anas Al Kassas, CEO and founder of INOVUES

"The biggest challenge has been finding funding. Most investors are looking towards software development companies as the capital costs are low in case of a risk. Geothermal costs are high, but it is physical technology that needs to be implemented to safety transition the energy grid to reliable, green power." — Cindy Taff, CEO of Sage Geosystems

3. Market adoption

"Market adoption by convincing partners and government about WHP as a solution, which is resource-intensive. Making strides by finding the correct contacts to educate." — Janice Tran, CEO and co-founder of Kanin Energy

"We are creating a brand new financial instrument at the intersection of carbon markets and power markets, both of which are complicated and esoteric. Our biggest challenge has been the cold-start problem associated with launching a new product that has effectively no adoption. We tackled this problem by leading the Energy Storage Solutions Consortium (a group of corporates and battery developers looking for sustainability solutions in the power space), which has opened up access to customers on both sides of our marketplace. We have also leveraged our deep networks within corporate power procurement and energy storage development to talk to key decision-makers at innovative companies with aggressive climate goals to become early adopters of our products and services." — Emma Konet, CTO and co-founder of Tierra Climate

4. Long scale timelines

"Scaling and commercializing industrial technologies takes time. We realized this early on and designed the eXERO technology to be scalable from the onset. We developed the technology at the nexus of traditional electrolysis and conventional gas processing, taking the best of both worlds while avoiding their main pitfalls." — Claus Nussgruber, CEO of Utility Global

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6 Houston greentech cos. named world's best & more top energy headlines

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Editor's note: Summer is heating up with big news in the energy transition sector, from Time's World's Top GreenTech Companies of 2026 to ExxonMobil's new Texas legal HQ. Below are the five most-read EnergyCapitalHTX stories published June 15-30, 2026:

1. 6 Houston companies earn recognition on Time’s global greentech list 2026

Six Houston-area businesses appear on Time magazine’s 2026 list of the world’s top greentech companies, with a high-flying name leading the pack. The highest-ranked local company is Houston-based geothermal power producer Fervo Energy, which claims the No. 4 spot—up from No. 14 last year. Continue reading.

2. Houston-based Syzygy lands global customer for first commercial SAF plant

Houston-based Syzygy lands global customer for first commercial SAF plant

Houston-based Syzygy Plasmonics has secured a major future customer for its sustainable aviation fuel. Syzygy has entered into a capacity reservation agreement with World Fuel Services, a global fuel distribution and logistics company. Through the deal, World Fuel has reserved a portion of Syzygy's SAF production for future plants slated for Central and South America. The clean fuel will be produced at Syzygy’s NovaSAF-1 facility in Uruguay, which is moving toward construction. Continue reading.

3. Fervo promotes strategy leader to COO as flagship geothermal project nears launch

Houston geothermal unicorn Fervo Energy has named Sarah Jewett as its new COO. Jewett steps into the role as the company prepares for its flagship Cape Station geothermal project to deliver its first power later this year. Jewett joined Fervo in 2020 as director of strategy and most recently served as the company's senior vice president of strategy. Continue reading.

4. UH study finds Gulf Coast best positioned for emerging carbon removal technology

The Gulf Coast is an ideal spot for deploying a new ocean-based carbon removal technology that uses seawater to capture and store carbon dioxide, according to a new study from the University of Houston. The study was led by UH Cullen College of Engineering Professor Mim Rahimi and published in Nature’s Communications Sustainability journal. Abdelrahman Refaie, a PhD student at UH, authored the paper. It aimed to develop a plan for implementing an electrochemical marine carbon dioxide removal (e-mCDR) technology that treats seawater to increase the ocean’s ability to absorb and store carbon dioxide from the air. Continue reading.

5. ExxonMobil announces date to move legal headquarters to Texas

Energy giant Exxon Mobil Corp. has set a date to move its legal headquarters to Texas. The Spring-based company announced that the redomiciliation from New Jersey to Texas is expected to be effective July 1. Exxon's board of directors unanimously recommended redomiciling in the Lone Star State in March, and shareholders approved the move to Texas at the company’s annual meeting in May. Continue reading.

Baker Hughes signs deal to install 500 MW of geothermal power

geothermal growth

Baker Hughes has made a deal to further expand its geothermal operations.

The Houston-based energy giant has signed an agreement with Mantle Reach Power to develop geothermal energy projects across North America. The companies say they aim to install up to 500 megawatts of geothermal power in the next five years, according to a news release.

Through the new agreement, Baker Hughes will provide subsurface technology and solutions while Mantle Reach Power will lead project development, ownership and financing. Mantle Reach Power is a geothermal development company backed by the $47 billion EnCap Energy Transition Fund III.

According to the release, the deal aims to help solve one of geothermal energy's fundamental problems by aligning capital with expertise and technology, and enhancing "pre-construction bankability."

“Geothermal is a clean power solution that is proving to be a vital contributor to advancing sustainable energy development, with incredible potential to enhance U.S. energy security, support digital infrastructure, and ensure energy remains accessible and affordable ... Today’s announcement celebrates the commercial architecture the industry has been missing: a repeatable, financeable model that can be deployed at the speed and scale to meet global energy demands,” Baker Hughes Chairman and CEO Lorenzo Simonelli said in the news release.

“Integrating Baker Hughes’ subsurface-to-surface expertise with our capabilities in project development, finance, and execution positions Mantle Reach Power to commercialize geothermal assets at scale,” Nick Karambelas, CEO of Mantle Reach Power, added in the release. “This structure provides the construction and operating certainty necessary to access conventional project financing and accelerate our growth as an independent power producer.”

Baker Hughes has launched multiple geothermal partnerships in recent months. The company announced a deal with Oklahoma-based Helmerich & Payne Inc. (H&P) in May to develop a geothermal rig, where H&P will provide a geothermal-capable land drilling rig and Baker Hughes will contribute technology.

In March, the company announced support for XGS’s geothermal extraction projects in New Mexico, which are being used to meet the increasing demands of data centers in the state. Last year, Fervo Energy selected Baker Hughes to supply equipment for its flagship geothermal project in Utah.

ENGIE strikes clean energy deal with Houston biomanufacturer

energy match

ENGIE North America has signed an agreement with Aker BioMarine to supply around-the-clock, Texas-sourced clean energy to the Norwegian company's Houston manufacturing facility.

The deal is through ENGIE's 24/7 offering, which allows users to "match electricity consumption with local renewable generation on an hourly basis," rather than annual renewable energy matching, according to a news release.

Houston-based ENGIE NA will match 90% of Aker BioMarine's hourly electricity consumption at its Houston facility through renewable energy certificates that link electricity consumed to clean power generated. The renewable energy will be sourced largely from ENGIE's Impact Solar Project in Lamar County, Texas.

“Working with companies that have made sustainability a core part of their strategy is essential to delivering meaningful progress,” Taymur Bunkheila, regional VP and retail supply lead for ENGIE’s U.S. 24/7 product, said in the release. “By aligning energy solutions with operational needs, we can help organizations improve transparency, strengthen accountability, and deliver measurable outcomes. This agreement demonstrates how companies can take practical steps today while building toward long-term sustainability objectives.”

Aker BioMarine, which develops sustainable marine-based ingredients, processes the majority of its krill and algae products at its Houston facility. The company says the deal with ENGIE marks an important step in reducing the environmental footprint of its operations.

“Through this agreement, we expect to reduce our Scope 2 emissions, marking an important milestone in our broader sustainability journey,” Matts Johansen, CEO at Aker BioMarine, added in the release. “ENGIE has delivered an affordable, innovative and transparent solution that allows us to match our electricity consumption for our Houston manufacturing facility with renewable power generation. The transparent data ENGIE provides strengthens our climate reporting while helping us continue delivering high-quality products with a lower environmental footprint."

ENGIE has more than 11 gigawatts of renewable energy projects in operation or under construction in the U.S. and Canada. The company is targeting 95 gigawatts by 2030

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